Base for a light



FIG. 1 is a perspective view of a base for a light, showing my new design

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the figures depict portions of the base for a light that are not part of the claimed design. 

CLAIM The ornamental design for a base for a light, as shown and described. 